Bit of an update- I opened up the socket, not seeing any signs of arcing on the focus pin.
https://photos.app.goo.gl/62gdRuM3AhLgeQzE6 (dumping photos off on google to maintain detail) I wish I had a before pic, it seems like possibly the connection between the focus wire and the tripler warmed up enough to melt the solder, else it was poorly done initially.
I also included pics of some possibly sketchy looking crystal formations on the bottom of one of the transformers in the flyback circuit. Are these typically a reliable part?
I've been checking around online for a good tripler for a couple months now, nothing available yet. Certainly a counterpoint to the longevity of the rest of the set haha Any tips on where to check these days? Thanks!